code: def setUpClass(cls):
      # region create permanent integrations
      for integration_name in ["files", "lightwood"]:
          integration_record = db.Integration(
              name=integration_name,
              data={},
              engine=integration_name,
              company_id=None,
          )
          db.session.add(integration_record)
          db.session.commit()
      integration_record = db.Integration(
          name=PG_HANDLER_NAME,
          data=PG_CONNECTION_DATA,
          engine="postgres",
          company_id=None,
      )
      db.session.add(integration_record)
      db.session.commit()
      # endregion
  
      handler_controller = integration_controller
  
      cls.handler = LightwoodHandler(
          "lightwood",
          handler_controller=handler_controller,
          fs_store=FsStore(),
          model_controller=ModelController(),
      )
      cls.config = Config()
  
      cls.target_1 = "rental_price"
      cls.data_table_1 = "demo_data.home_rentals"
      cls.test_model_1 = "test_lightwood_home_rentals"
      cls.test_model_1b = "test_lightwood_home_rentals_custom"
  
      cls.target_2 = "Traffic"
      cls.data_table_2 = "demo_data.house_sales"
      cls.test_model_2 = "test_lightwood_house_sales"
  
imports: import os
  import time
  import unittest
  import tempfile
  from mindsdb.migrations import migrate
  from mindsdb.utilities.config import Config
  from mindsdb.integrations.utilities.test_utils import HandlerControllerMock, PG_HANDLER_NAME, PG_CONNECTION_DATA
  from mindsdb.interfaces.database.integrations import integration_controller
  from mindsdb.integrations.handlers.lightwood_handler.lightwood_handler.lightwood_handler import LightwoodHandler
  from mindsdb.interfaces.storage.fs import FsStore
  from mindsdb.interfaces.model.model_controller import ModelController
  from mindsdb.integrations.libs.response import RESPONSE_TYPE
  import mindsdb.interfaces.storage.db
label_desc: Use image node_id 1 for calling the LightwoodHandlerTest obj's underlying member method code with example usage: obj.setUpClass(cls) without return types